Watts Water Technologies N36-M1 1/2 Inch Water Service Vacuum Relief Valve - Prevent Backflow & Protect Plumbing Systems for Residential & Commercial Use

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Water Service Vacuum Relief Valve. Automatically vents a closed system if vacuum occurs. Allows air to enter system. Relieves vacuum conditions which could siphon the water from the system and burn out a water heater or collapse a tank. Male pipe thread. Maximum water working pressure: 200 P.S.I. Maximum temperature: 250 deg. F. Also suitable for steam service, maximum pressure: 15 P.S.I.

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4.5

I bought this for my household water treatment system. I assume it works, but who knows. I wasn't about to build a test rig to try it. This valve is installed on a tank which I drain off 5-10 gallons of water monthly and have not had any issues.

Watts Water Technologies N36-M1 1/2 Inch Water Service Vacuum Relief Valve - Prevent Backflow & Protect Plumbing Systems for Residential & Commercial Use

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